“PLASTIKI” AND MORE FROM THE PEROT The Perot Museum of Nature and Science has so many cool things to do, they’re spilling outside the museum.

“Plastiki”: Check out David de Rothschild’s 60-foot catamaran made of 12,500 2.5-liter plastic bottles and other biodegradable products. The exhibit was designed to draw attention to the 73.9 million pounds of plastic waste dumped into oceans. See it through Sept. 7 on the outdoor plaza of the Perot Museum, 2201 N. Field St., Dallas. perotmuseum.org.

Science Surrounds Us: Kids can also participate in an interactive program with Perot Museum staff in the Children’s Park at Klyde Warren Park on Sept. 7 from 11 a.m. to 2 p.m. (Arrive at 10 a.m. and kids can participate in a one-hour Yogiños: Yoga for Youth session on the Great Lawn from the Crow Collection before the Perot program starts.) 2012 Woodall Rodgers Freeway, Dallas. 214-716-4500. Cancellations due to weather are possible; check klydewarrenpark.org for updates.

THREE MUSEUMS FOR THE PRICE OF NONE The first Saturdays of the month mean great, guided activities for kids at area museums.

Target First Saturdays at the Nasher Sculpture Center: The theme is Scale, and kids can make small-scale versions of themselves from 10 a.m. to noon. There’ll be artist demos from 10 a.m. to 12:30 p.m., an art scavenger hunt from 10 a.m. to 2 p.m., family tours hourly from 10:15 a.m. to

AdventureAsia: Family Days at the Crow Collection of Asian Art: The theme is Autumn Moon Festival, with a chance to view the moon in the Perot Museum’s Portable Universe every 30 minutes. Kids can also create telescopes, hear stories about different autumn moon festival traditions around Asia at 12:30 and 1:30 p.m., sample Chinese moon cakes, do family meditation with the Kadampa Meditation Center Texas from 10:30 to 11 a.m., try family yoga with Yogiños: Yoga for Youth from 11 to 11:45 a.m., and take a tour of the collection at 1 p.m. Free admission from 10 a.m. to 6 p.m., with family activities from 10 a.m. to 2 p.m. 2010 Flora St, Dallas. 214-979-6430. crowcollection.org.

First Saturday at the Botanical Research Institute of Texas: The spotlight will be on the opening of the “Kochi Makino: An Amazing Botanical Garden in Japan” exhibit. There’ll be taiko drummers; a kimono fashion show; Japanese classical dance; a demonstration of the traditional Japanese tea ceremony; examples of origami, calligraphy and ikebana; and a lecture and book signing by botanist and author Peter Crane with his new book, Gingko: The Tree That Time Forgot. There’ll be a farmers market and Bella’s Story Time (from 10:30 to 11:30 a.m.). The event runs from 10 a.m. to 2 p.m. 1700 University Drive, Fort Worth. 817-332-4441. brit.org.

KIDS GO WILD Kids ages 2 to 6 are invited to go on a safari-themed adventure at two local malls with singing, dancing and stories. They’ll also be able to decorate wild-animal sun visors to take home while supplies last in sessions that run 45 minutes to an hour. No reservations needed, but adults taking five or more kids should call Tina Aboulhosn at 817-467-6496, ext. 11, for the Parks at Arlington and Fara Reid at 817-294-1205, ext. 7021, for Hulen Mall to make sure there will be enough giveaways for all the kids.

The Parks at Arlington: Sept. 10 at 11 a.m. on the lower level near Nordstrom Rack and Dick’s Sporting Goods, 3811 S. Cooper St. at Interstate 20, Arlington. 817-467-2757. theparksatarlington.com.

FAMILYPALOOZA Kids can learn how to keep their bodies healthy and safe through interactive games and AmeriHeart and AmeriBrain — walk-through models of the heart and brain at the Medical Center of Plano’s annual Health & Safety Fair.

There’ll be face painting, prizes and refreshments, plus a Plano Fire Department firetruck that the kids can tour. Sept. 7 from 3 to 6 p.m. under a tent in the parking lot outside Medical Office Building 3 at 4001 W. 15th St. at Coit Road (northwest corner), Plano. 214-473-7317. themedicalcenterofplano.com.

THE YA ADVANTURE TOUR Teens can meet four young-adult authors from three publishing houses who have put together a grass-roots tour in five cities to meet fans and share their new books. Good Morning Texas’ By the Book correspondent Gwen Reyes will moderate a panel featuring authors Tessa Gratton (The Lost Sun), Sonia Gensler (The Dark Between), Tara Hudson (Elegy) and Myra McEntire (Infinityglass). Sept. 5 at 7 p.m. Barnes & Noble at Stonebriar Centre, 2601 Preston Road at State Highway 121, Frisco. store-locator .barnesandnoble.com/event/80963.